Acanthoscurria Musculosa Again ??

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phoenixxavierre

Arachnoprince
Old Timer
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Oct 9, 2002
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Some Acanthoscurrias, such as this, are not easily identified. It's difficult to id by picture. Sometimes it takes examination of a fresh molt, looking over the shape and size of various features. All I know is that A. musculosa is a very dark brown to black color, nearly black if not black. Here are various descriptive papers that you can order from a local library or college library. It would be the best information on actually accurately identifying this species.

I'm in the same boat as you with an Acanthoscurria species I have! I have three pairs (male/female) which were being sold as both A. musculosa and A. chacoana. I have yet to figure out what they really are, though A. cordubensis has also been suggested to me.

Simon, E. (1892d). Etudes arachnologiques. 24e Mémoire. XXXIX. Descriptions d'espèces et de genres nouveaux de la famille des Aviculariidae (suite). Ann. Soc. ent. Fr. 61: 271-284. (page 281 is what you want)

Mello-Leitão, C. F. de. (1923a). Theraphosideas do Brasil. Rev. Mus. Paulista 13: 1-438. (look at pages 83-85, 180 and 302)

Schiapelli, R. D. & B. S. Gerschman de P. El género Acanthoscurria Ausserer, 1871 (Araneae, Theraphosidae) en la Argentina. Physis B. Aires (C) 24: 391-417 (look at pages 10-14 and and 413)

Stewien, K. E. Estudos sistemáticos sôbre aranhas caranguejeiras. Descrição da fêmea de Acanthoscurria musculosa Simon, 1892 (Aviculariidae, Theraphosinae). Mems Inst. Butantan 34: 79-84. (look over pages 1-7 and 79)

Peters, H.-J. (2000a). Tarantulas of the world: Kleiner Atlas der Vogelspinnen - Band 1. Published by the author, 148 pp. (look at pages 17 and 30)
 
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